Eating American foods will take care of most of your salt needs, I should think.
I do like salty snack foods while riding.
On yesterdays ride when I ran out of water I really liked the taste of salty sweat pouring off my forehead.
I like a brand of electrolytes called sport legs
http://www.sportlegs.com/about/welcome.asp and a hydration drink called Vitalyte
http://www.vitalyte.com/ between those two I get by pretty well for most rides. I don't really care for the heavier sports drink mixes YMMV.